In P.E.R.C. No. 2016-10, the Commission ruled that negotiations over health benefit contribution levels cannot begin until the successor contract negotiations that begin after completion of the four-year tiered implementation set by Chapter 78. The Commission also ruled that a preexisting contract provision was preempted to the extent it set out 1.5% of base salary as the status quo for negotiations once employee contribution levels become negotiable. The Association has appealed.